Game 1:
This is a New IP.
This is also a AAA 3rd Person action/adventure game.
The jobs all ask for competitive multiplayer experience and/or multiplayer level design.
However, there are some mentions of cutscene animations, AI, and levels, so I'm not sure if there's some kind of campaign component or not. it could just be a slightly unusual multiplayer game.
The job postings mention "proprietary engine". This would normally suggest Ubisoft over Microsoft, but I'm not entirely due to Game 2's description.
They mention cross-platform a lot, though I guess Microsoft is cross-platform by virtue of Xbox and PC.
Game 2:
This is an F2P game.
This is based on a "globally-recognised IP for a major publisher".
It's a "large-scale project".
They ask for experience designing touch based interfaces, suggesting it is for mobile, or also on mobile. I guess it could technically be for Switch, though that strikes me as less likely.
Game 3(?):
This is possibly the same thing as game 2, but I'm not positive about that.
It's a Unity based game.
It's a Toys to Life game.
In an interview, Studio Gobo revealed it was in partnership with a "daring and ambitious partner", and that the hook would be that you keep interacting with your toy while playing the game.